Located in the Jardins de l'Arche, One is a housing development covering approximately 11,200 m². The architectural firm FMA (Farshid Moussavi Architecture) was selected following an international architectural competition launched in June 2011 by the developer Les Nouveaux Constructeurs.

The building has eleven floors: the first three floors are dedicated to a residence with 110 student rooms, while the upper floors contain 91 affordable housing units. Shops covering an area of nearly 1,150 m² will enliven the various levels of the forecourt at the foot of the building. The originality of this project lies in the horizontal stratification of the programs and the staggered layers that offer sweeping views of the historic axis. This new form allows each apartment to be equipped with a loggia and a partially covered balcony.

The elevation of the apartments up to 32.5 meters provides uninterrupted views overlooking the Jardins de l'Arche, and the slender shape of the building allows for a maximum number of light-filled apartments.

The sliding shutters that make up the façade can be operated from the inside by the residents.

Of Iranian origin, Farshid Moussavi moved to London in the 1980s. She began her career at the Renzo Piano Building Workshop in Genoa in 1988. From 1991 to 1993, she collaborated with Rem Koolhaas at the Office for Metropolitan Architecture in Rotterdam. She founded her first agency in 1995 in London, alongside Alejandro Zaera Polo. Farshid Moussavi then made a name for herself internationally by designing the Yokohama Maritime Terminal.

In 2011, she launched her international agency, FMA, and began working on projects for contemporary art museums in Cleveland, United States, and Koran, Tehran.